Target opponent reveals the top card of his or her library. Cerebral Eruption deals damage equal to the revealed card's converted mana cost to that player and each creature he or she controls. If a land card is revealed this way, return Cerebral Eruption to its owner's hand.

Reveal the top X cards of your library. You may put any number of permanent cards with converted mana cost X or less from among them onto the battlefield. Then put all cards revealed this way that weren't put onto the battlefield into your graveyard.

: Put target artifact or creature card with converted mana cost X from an opponent's graveyard onto the battlefield under your control tapped. Then that player puts the top X cards of his or her library into his or her graveyard.